Machine for cutting glass



(ModeL) I P. G. GLAPLIN.

MACHINE FOR CUTTING GLASS. No. 308,466. Patented Nov. 25, 1884- L All dI WITNESSES: INVENTOR: mm 1% W ATTORNEYS.

machine.

ilsiirnn PRICE C. OLAFLIN, OF STEVENS POINT, VISOONSIN.

MACHINE FOR CUTTENG GLASS.

SPECIFICATION forming part of Letters Patent No. 308,466, dated November25, 1884.

Application filed March 19, 1 24. ModeL) T0 aZZ whom it may concern:

Be it known that I, P111012 0. CLAFLIN, 0 Stevens Point, in the countyof Portage and State of Wisconsin, have invented a new and ImprovedMachine for Cutting Glass, of which the following is a full, clear, andexact description.

The object of this invention is to provide a machine for cutting glassin circles.

The invention consists in a bed mounted to be revolved upon a suitableframe, and in a guide-arm secured upon an arm of the frame, to projectradially over the bed, and provided at its inner end and over the centerof the bed with a binding-screw for holding the glass to be out upon thebed.

The invention further consists in a cutterholder for the cutting-tooladapted to be fixed in a slot of the guide-arm at any point of the same;and the invention further consists in a cutting-tool having a squarebody adapted-to fit in a diagonally-arranged square aperture of thecutter-holder, as will be hereinafter described.

Reference is to be had to the accompanying drawings, forming part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure 1 is a plan view of my glass-cutting Fig. 2 is a cross-sectionalelevation of the same through the center of the frame and arm, a partbeing broken out. Fig. 3 is an enlarged plan View of the cutter-holder,the nut being removed; and Fig. at is a perspective view of thecutting-tool on a larger scale.

A frame, A, formed of a circular rim, 0, arms I), supporting a centralhub, c, and a radial arm, (1, strengthened by side braces, which frameis supported upon legs e, has a pivot, B, fixed at its center in the hubc. A guide-arm, 0, having a longitudinal. slot, (1, is secured upon thearm d of the frame by a bolt, f, and a stay-pin, and is of such lengththat its inner end is over the pivot B, which inner end is provided witha threaded aperture in line with the said pivot for a bindingscrew, E. Acircular bed, F, fitted upon the pivot B, rests upon the rim a of theframe A.

A cutter-holder, G, fitting in the slot d of the guide-arm G, has at oneend a rim, 9, for bearing upon the under side of the guide-arm, andhasits other end screw-threaded fora nut, h, to bear upon the upper sideof the guidearm. A square aperture, 1', is formed through the cutterholder, which aperture has the longer axis of its cross-section in linewith the slot (1.

A cutting-tool, H, having a square body adapted to fit closely in theaperture 2', is fitted at its lower end, and diagonally of the body,with a steel roller, j, and at its upper end with a disk, 7t, or otherhandle. Instead of the roller 3', any other device for cutting glass maybe used. This cutting-tool is to be placed in the cutter-holder, so thatits out will be in a circumferential line of the bed F.

Upon the bed F is a scale, J, for setting the cutter to any desiredradius.

In use the sheet of glass I to be cut is placed upon the bed F. Thebinding-screw E is turned down upon the glass sufficiently to hold theglass upon the bed, so that it will turn with the bed when the bed isrevolved. cutter-holder is secured in the guide-arm O by turning downits nut It, so that the cuttingedge of the tool will be on a point inthe circumference of the circle to which the glass is to be cut.Sufficient pressure is then made with one hand upon the handle is of thetool to cause it to cut into the glass, while the bed F with the glassis revolved with the other hand. 1th this machine glass can be cut intoa circular shape of any desired diameter with great ease, and circularholes can be cut in sheets of glass. It is simple in construction andeasily operated.

By the diagonal arrangement of the aperture in the cutterholder for thesquare body of the cutter the cutter is held firmly in place. Thisaperture may be made diamond-shaped, if desired.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

-1. The combination, with frame A, having a central pivot, and theguide-arm 0, having a longitudinal slot and provided withabinding-screw, of the bed F and the adjustable cutter-holder G, fittedfor carrying the cut- The ting-tool H, substantially as shown and de- 4.In a machine for cutting glass, the comscribed. bination, with thecutter-holder G, of the cut- 2. In a machine for cutting glass, theframe ting-tool H, having a square body, and hav- 15 A, having the pivotB, in combination with ing its cutting point or roller arranged diag- 5the longitudinally-slotted guide-arm 0, proonally of the body,substantially as shown and vided with the binding-screw E, and the beddescribed. F, substantially as shown and described. 8. In amachine forcutting glass, the cutter- PRICE 0. OLAFLIN.

holder G, having a square or diamond shaped 1o aperture diagonal incross-section with the Vitnesses:

holder, and also provided with a binding- JOHN GADMAN, screw, h,substantially as shown and described. W. HENRY \VATTs.

